Inverse Faraday Effect with Linearly Polarized Laser Pulses

Ali, S.; Davies, J. R.; Mendonça, J. T.

doi:10.1103/physrevlett.105.035001

Cited by 113 publications

(74 citation statements)

References 22 publications

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“…More recently, the generation of a longitudinal magnetic field was explored18 using laser pulses carrying orbital angular momentum (OAM) created by polarization of the laser pulse1920 or a hollow screw-like intense LaguerreGaussian laser pulse21. These techniques are closer to those discussed in this paper but the method suggested is capable of producing significantly higher solenoidal fields.…”

mentioning

confidence: 95%

GigaGauss solenoidal magnetic field inside bubbles excited in under-dense plasma

Lécz

Konoplev

Seryi

et al. 2016

Sci Rep

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This paper proposes a novel and effective method for generating GigaGauss level, solenoidal quasi-static magnetic fields in under-dense plasma using screw-shaped high intensity laser pulses. This method produces large solenoidal fields that move with the driving laser pulse and are collinear with the accelerated electrons. This is in contrast with already known techniques which rely on interactions with over-dense or solid targets and generates radial or toroidal magnetic field localized at the stationary target. The solenoidal field is quasi-stationary in the reference frame of the laser pulse and can be used for guiding electron beams. It can also provide synchrotron radiation beam emittance cooling for laser-plasma accelerated electron and positron beams, opening up novel opportunities for designs of the light sources, free electron lasers, and high energy colliders based on laser plasma acceleration.

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mentioning

confidence: 95%

GigaGauss solenoidal magnetic field inside bubbles excited in under-dense plasma

Lécz

Konoplev

Seryi

et al. 2016

Sci Rep

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show abstract

“…Figure 4 displays a three-dimensional image of the azimuthal component of the electric field keeping the angular mode number fixed and varying the radial mode number (p = 1, 2, 3, 4). It is noted that the amplitude of the electric field strongly depends on the value of p as expected, which can also be useful for the generation of an axial magnetic field due to plasmons (Ali et al 2010) in quantum plasmas. The oscillations seem like the electron plasma waves with a transverse structure, which can be considered analogous to the electromagnetic wave mode, and LG-type density and potential perturbations contribute to the OAM of such modes.…”

Section: Discussion and Summarymentioning

confidence: 96%

Plasmons carrying orbital angular momentum in quantum plasmas

Khan¹,

Ali²,

Mendonça³

2013

J. Plasma Phys.

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The existence of plasmons with orbital angular momentum due to the Laguerre-Gaussian-type density and potential perturbations is studied in an unmagnetized quantum plasma. Starting from appropriate hydrodynamic equations for the electrostatic electron dynamics, a dispersion equation is derived in paraxial approximation. The Laguerre-Gaussian beam solutions are obtained and the properties of electric field components, energy flux, and corresponding angular momentum density of plasmons are investigated. The electric field lines are found to form helical structures with a dominant axial component. The results are analyzed numerically and the influence of radial and angular mode numbers on potential and electric field components is illustrated.

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“…During the encounter between the space crafts Vega 1 and Vega 2 and the Halley comet, a variety of waves and oscillations with a range of frequencies, some as low as 10 Hz, were observed in cometary plasmas. [13][14][15][16] The kinetic theory of electron plasma waves with OAM was described by Mendonca for the first time. [7] When a quasi-neutral electron-ion plasma propagates through another static quasi-neutral [target] plasma, the instability threshold changes, and threshold velocity may be well below the IA speed of static plasma.…”

Section: Introductionmentioning

confidence: 99%

Kinetic instability of twisted excitations in permeating plasma environments

Bukhari

Khan

Ali

2018

Contributions to Plasma Physics

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Twisted ion-acoustic excitations and the existence of kinetic instability are investigated in this study, accounting for finite orbital angular momentum states. For this purpose, a quasi-neutral electron-ion plasma is considered, which permeates through another (target) plasma. The Vlasov-Poisson model is used to obtain explicit expressions for wave dispersion and kinetic instability, including the contributions from the orbital angular momentum. It is shown that the existence of instability is a result of the exceeding electron speed as compared to the ion-acoustic speed, with a strong contribution of twist in the wave. Furthermore, it is found that a planner ion-acoustic wave propagates as a slow wave in comparison with the non-planar (twisted) wave. The results are analysed numerically for typical plasmas found in space and astrophysical environments.

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Inverse Faraday Effect with Linearly Polarized Laser Pulses

Cited by 113 publications

References 22 publications

GigaGauss solenoidal magnetic field inside bubbles excited in under-dense plasma

GigaGauss solenoidal magnetic field inside bubbles excited in under-dense plasma

Plasmons carrying orbital angular momentum in quantum plasmas

Kinetic instability of twisted excitations in permeating plasma environments

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